EP2171373B1 - Kältegerät - Google Patents

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Publication number
EP2171373B1
EP2171373B1 EP08774909.9A EP08774909A EP2171373B1 EP 2171373 B1 EP2171373 B1 EP 2171373B1 EP 08774909 A EP08774909 A EP 08774909A EP 2171373 B1 EP2171373 B1 EP 2171373B1
Authority
EP
European Patent Office
Prior art keywords
channelling
evaporator
plate
portions
point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08774909.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2171373A1 (de
Inventor
Wolfgang Nuiding
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL08774909T priority Critical patent/PL2171373T3/pl
Publication of EP2171373A1 publication Critical patent/EP2171373A1/de
Application granted granted Critical
Publication of EP2171373B1 publication Critical patent/EP2171373B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/22—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/10—Particular layout, e.g. for uniform temperature distribution

Definitions

  • the present invention relates to a refrigerator with at least one storage compartment and a refrigerant circuit comprising an evaporator for cooling the storage compartment, and an evaporator for such a refrigeration device.
  • Such evaporators conventionally include a circuit board on which a refrigerant line extends in loops from an injection point to an outlet point.
  • the loops are usually regularly arranged in successive installation orientation of the evaporator from top to bottom, so that when at the beginning of a cooling phase refrigerant is injected into the evaporator, the liquid refrigerant and with him the cooling effect only gradually from top to bottom over the entire evaporator surface spreads. Several minutes may pass before the entire evaporator surface has cooled evenly. This effect is all the greater, the larger the circuit board of the evaporator and / or its conduit length and the more intense the heat exchange at the surface of the evaporator.
  • Out US 2 654 226 A is a refrigeration device with at least one of a platinum-type evaporator cooled storage compartment and a refrigerant circuit is known in the evaporator two line sections are formed, which are each connected on the one hand via a riser to a branch arranged outside of the evaporator and a throttle point and the other on an outside the evaporator arranged collecting line meet.
  • refrigerant supplied via the throttle point is distributed in parallel to the two line sections.
  • a heater is arranged at the leading to a first of the line sections. When this heater is in operation to defrost the evaporator, it drives a flow of refrigerant through the first line section to the manifold and from the manifold back through the second line section to the manifold.
  • the object of the present invention is to provide an economical refrigeration appliance with improved energy efficiency and an evaporator suitable for such a refrigeration appliance.
  • both line sections are supplied with activation of the refrigerant circuit simultaneously with liquid refrigerant; since they have spaced centers of gravity, their cooling effect concentrates on different areas of the evaporator.
  • a more uniform distribution of the refrigerant on the evaporator from the beginning of the cooling operation is achieved, so that the time between the start of the cooling operation and a uniform cooling of the entire evaporator is shortened.
  • the spacing of the centroids should therefore be at least greater than the ratio of the surface area of the evaporator to the length of the refrigerant line extending thereon.
  • the separation of the line sections may be such that a boundary can be drawn on the evaporator between regions cooled by one and the other of the line sections, which is not longer than the sum of the edge lengths of the evaporator.
  • the cooling effect initially is expedient for the cooling effect initially to be used in regions of the evaporator which are at a distance from one another and from there to spread over the evaporator surface.
  • the line sections are expediently arranged so that on at least one of the line sections, the line length between an upstream starting point of the power section and the farthest from a center of the evaporator point of this line section is shorter than the line length between the farthest from Center of the evaporator remote point and a downstream end point of the same line section.
  • Fig. 1 is a schematic plan view of an evaporator for a refrigerator with a single storage compartment, such as a refrigerator or freezer.
  • the evaporator is assembled from a flat board and a board into which a refrigerant channel 1 is stamped. At a junction in the upper left corner of the board leads leading to a compressor of the refrigerator suction line 11 to the refrigerant passage 1.
  • a guided in the suction line capillary 2 is inserted at an injection point 12 tightly into a bottleneck of the refrigerant passage 1.
  • the evaporator can, for example, in a rear wall of the Refrigerating device, between an inner container and an insulating foam layer, be mounted with the inner container facing planar board.
  • the invention is also applicable to an evaporator which is arranged in the inner container of a refrigerator and surrounds a freezing compartment there.
  • a branch 3 is formed in the refrigerant channel 1, at which the refrigerant flow is divided into two line sections 4, 5.
  • the line section 4 substantially fills the upper half of the evaporator plate and extends in several U-shaped loops to a confluence 6, where it again meets the line section 5.
  • the line section 5 extends from the branch 3, initially along the edges of the evaporator plate to a lower edge, from where it also forms a loop on the confluence 6.
  • the line length between the branch 3 and a point 7 and 8 of the line section furthest from a center C of the board is substantially shorter than the distance from point 7 or 8 to the confluence 6.
  • the distance between the centers of gravity 9, 10 of the line sections 4, 5 is many times greater than the distance d between adjacent parallel pieces of the line sections 4, 5 and thus significantly larger than the ratio of board surface to the total length of the refrigerant channels extending thereon. 1
  • Fig. 2 shows a second embodiment of the evaporator. While in the design of the Fig. 1 a clear distinction between an essentially cooled by the line section 4 upper half and a cooled only by the line section 5 lower half of the board is possible, such a clear separation in the embodiment of Fig. 2 not given. Although here, too, the upper half of the evaporator plate is essentially cooled only by the line section 4, while the line section 5 along the top and right edges of the board on the shortest path of the lower half of the board strives, but extend in this lower half of the line sections 4, 5 largely next to each other. The effect is however nevertheless similar to that of the embodiment of Fig.
  • the line section 5 Since the line section 5 reaches the lower half of the board without detours, it starts each with a slight delay after the onset of a refrigerant flow through the evaporator to cool the lower half long before liquid refrigerant reaches the lower half of the board via the line section 4. Thus, the cooling effect spreads first from the top of the board and shortly thereafter from below in a short time over the entire board surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP08774909.9A 2007-07-24 2008-07-09 Kältegerät Not-in-force EP2171373B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08774909T PL2171373T3 (pl) 2007-07-24 2008-07-09 Urządzenie chłodnicze

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007034294A DE102007034294A1 (de) 2007-07-24 2007-07-24 Kältegerät und Verdampfer dafür
PCT/EP2008/058903 WO2009013130A1 (de) 2007-07-24 2008-07-09 Kältegerät und verdampfer dafür

Publications (2)

Publication Number Publication Date
EP2171373A1 EP2171373A1 (de) 2010-04-07
EP2171373B1 true EP2171373B1 (de) 2015-09-09

Family

ID=39817041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08774909.9A Not-in-force EP2171373B1 (de) 2007-07-24 2008-07-09 Kältegerät

Country Status (6)

Country Link
EP (1) EP2171373B1 (pl)
CN (1) CN101755176B (pl)
DE (1) DE102007034294A1 (pl)
PL (1) PL2171373T3 (pl)
RU (1) RU2477427C2 (pl)
WO (1) WO2009013130A1 (pl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201715902U (zh) * 2009-10-16 2011-01-19 杨泰和 流路依温差交错均布的吸热或释热装置
DE102011117928A1 (de) * 2011-09-19 2013-03-21 Bundy Refrigeration Gmbh Mehrkanal-Verdampfersystem
DE102011117967A1 (de) * 2011-10-06 2013-04-11 Liebherr-Hausgeräte Ochsenhausen GmbH Mehrkanal-Verdampfer
CN102519201B (zh) * 2011-12-24 2015-07-01 广东奥马电器股份有限公司 带有高效节能蒸发器的冷藏箱
DE102013215825A1 (de) * 2013-08-09 2015-02-12 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einem Verdampfer
CN103697651A (zh) * 2013-12-31 2014-04-02 合肥华凌股份有限公司 一种冷柜制冷系统
PL3792576T3 (pl) * 2018-09-04 2023-02-20 Ovh Blok wodny zawierający przewód płynowy
BE1026655B1 (nl) * 2018-09-27 2020-04-28 Vos Technics Bvba Verdamper
WO2025011884A1 (en) 2023-07-13 2025-01-16 BSH Hausgeräte GmbH A cooling appliance having an evaporator assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH259212A (fr) 1945-09-04 1949-01-15 Dole Refrigerating Products In Elément de réfrigération à vide.
US2654226A (en) * 1951-08-18 1953-10-06 Seeger Refrigerator Co Automatic defrosting evaporator
CN2171822Y (zh) * 1992-08-27 1994-07-13 关绍勤 装有套管的管板式蒸发器
NL1001064C1 (nl) * 1995-06-28 1995-11-15 Fasting Corian Verwerking Koelinrichting.
CN2359635Y (zh) * 1998-12-10 2000-01-19 北京燕翔机械厂 丝管式蒸发器
US6185957B1 (en) * 1999-09-07 2001-02-13 Modine Manufacturing Company Combined evaporator/accumulator/suctionline heat exchanger
DE10126817A1 (de) * 2001-06-01 2002-12-05 Bsh Bosch Siemens Hausgeraete Kältegerät
ITVA20010006U1 (it) * 2001-06-12 2002-12-12 Whirlpool Co Congelatore verticale e frigorifero che lo comprende

Also Published As

Publication number Publication date
RU2477427C2 (ru) 2013-03-10
PL2171373T3 (pl) 2016-02-29
WO2009013130A1 (de) 2009-01-29
CN101755176A (zh) 2010-06-23
EP2171373A1 (de) 2010-04-07
CN101755176B (zh) 2012-04-11
RU2010104627A (ru) 2011-08-27
DE102007034294A1 (de) 2009-01-29

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